baber/WOPTO huggingface dataset:
Patent JP-2020170147-A (JP)
Title: Liquid crystal display device
Inventor: YAMADA NAOYOSHI
IPC: G02F1/1335
Filed: 2020-02-27
Abstract: To provide a liquid crystal display device that suppresses reflection of external light and degradation in visibility under the condition of intense external light, as well as suppresses leakage of light in a black display mode even in a viewing environment free of external light such as a dark room, and has high display quality.SOLUTION: A liquid crystal display device includes at least a first polarizer, a quarter-wave retardation layer, a liquid crystal cell, and a second polarizer, in the described order. The liquid crystal cell is an IPS or FFS system liquid crystal cell including: a pair of substrates disposed opposing to each other, at least one of which has an electrode; and a liquid crystal layer disposed between the pair of substrates and comprising a liquid crystalline compound having controlled alignment. The liquid crystal layer in the liquid crystal cell has a retardation corresponding to a 1/4 wavelength or a retardation corresponding to a 3/4 wavelength. The quarter-wave retardation plate is a negative A-plate having a retardation Re(550) satisfying a specific expression. An angle formed by the orientation of the absorption axis of the first polarizer and the orientation of the slow axis of the quarter-wave retardation layer is 40° or more and less than 50°.SELECTED DRAWING: Figure 2
Patent JP-2021134127-A (JP)
Title: Method for manufacturing fluorescent nano diamond
Inventor: LIU MING
IPC: C06B45/00
Filed: 2020-02-28
Abstract: To provide a method for manufacturing a fluorescent nano diamond obtained by a detonation method and having two sharp peaks of ZPL (Zero Phonon Level) derived from an NV (Nitrogen-Vacancy) center.SOLUTION: A method for manufacturing a fluorescent nano diamond having a fluorescence wavelength spectrum showing the zero phonon lines (ZPL) of NV0 and/or NV- comprises the following steps of 1 to 4. The step 1: a detonation step of detonating at least one kind of explosive to obtain a nano diamond raw material; the step 2: a first annealing step of annealing the nano diamond raw material or nano diamond having sp2 carbon removed by subjecting the nano diamond raw material to strong acidification, ozonization or vapor-phase oxidation at 1000-1600°C; the step 3: a hole formation step of, after the first annealing step, irradiating the annealed nano diamond with an ion beam or an electron beam; and the step 4: a second annealing step of annealing the nano diamond after the hole formation at 600-900°C to form NV centers.SELECTED DRAWING: Figure 1
Patent JP-2021134893-A (JP)
Title: Gate valve
Inventor: KIMORI NAOKI
IPC: F16K3/00
Filed: 2020-02-28
Abstract: To provide a gate valve capable of determining whether a lock piston is in an engagement state with respect to an engagement hole or not.SOLUTION: A gate valve 1 includes a valve plate 4 for opening and closing a gate opening 2, a valve shaft 5 fixed to the valve plate 4, an air cylinder 20 having a driving rod 21, and a valve movement mechanism 29 for reciprocating the valve plate 4 between a close position for closing the gate opening 2 and a full open position P1 for fully opening the gate opening 2 in accordance with telescopic motion of the driving rod 21. A cylinder housing 22 of the air cylinder 20 includes a lock mechanism for locking the valve plate 4 moved to the close position, and a lock detection part for detecting the lock state of the valve plate 4. The lock mechanism has a lock piston which is provided so as to be capable of advancing and retreating in the cylinder housing 22. A cam frame 32 fixed to the driving rod 21 has an engagement hole 32c for engaging the lock piston, and the lock detection part detects whether the lock piston is in the engagement state with respect to the engagement hole 32c or not.SELECTED DRAWING: Figure 1
Patent JP-2021133140-A (JP)
Title: Adhesive cleaner
Inventor: KATO KEIKO
IPC: A47L25/00
Filed: 2020-02-28
Abstract: To provide an adhesive cleaner capable of linearly separating an adhesive tape from an adhesive tape roll body at an arbitrary location.SOLUTION: An adhesive cleaner is composed of a rod shaped handle part 1, a holding part 2 that is connected to the lower end of this handle part 1 and holds an adhesive tape roll body R, and an attachment shaft part 3 that is attached to both ends of the adhesive tape roll body R and is rotatably supported on the holding part 2. The holding part 2 has a rectangular main surface part 2a to which the handle part 1 is connected, and a pair of cut surface parts 2c that are connected to both long sides of the main surface part 2a via a connecting part 2b, and cut an adhesive tape from the attached adhesive tape roll body R. Both end parts 4d of a blade part 4, which are pressed from both the left and right sides of the cut surface part 2c to protrude on both sides, are brought into contact with a surface R2 of the adhesive tape roll body R. Then, by lifting the drawn adhesive tape upward, the used adhesive tape is separated from the adhesive tape roll body R along a tip part 4c of the blade part 4.SELECTED DRAWING: Figure 3
Patent JP-2021140365-A (JP)
Title: Information provision device, information provision system and program
Inventor: KATO HIRONARI
IPC: G06Q10/10
Filed: 2020-03-03
Abstract: To provide a device, a system and a program, capable of enhancing productivity of users.SOLUTION: An information provision device is a device for providing information to users, including: generation means for, based on work schedule information of a user, generating information including a place for performing the work to be provided to the user; reception means for receiving private information of the user; and update means for, based on the received private information, updating the generated information.SELECTED DRAWING: Figure 3
Patent JP-2021137725-A (JP)
Title: Dispersion fluid production device
Inventor: KUBO Shuhei
IPC: B01J13/00
Filed: 2020-03-04
Abstract: To provide a dispersion fluid production device capable of maintaining a function in which, a preparation ratio amount and an assumed composition ratio of a functional coat can be made substantially match, and producing particle dispersion fluid having no particle aggregation.SOLUTION: A dispersion fluid production device MS for producing particle dispersion fluid in which particles having a prescribed particle diameter or smaller are dispersed in a dispersant, comprises: cracking means 1 for cracking particle aggregate in the dispersant, in which the particle aggregate being obtained by aggregation of the particles whose particle diameter exceeds a prescribed particle diameter in the dispersant; classifying means 2 for classifying particles and particle aggregate in the dispersant; and a circulation line 3 for circulating the dispersant including any one of the particles and particle aggregate, between the cracking means and classifying means, in which a circulation line directed to the classifying means from the cracking means is a primary line 31, and a circulation line directed to the cracking means from the classifying means is a secondary line 32, and the classifying means is configured to return the dispersant including the particle aggregate, to the secondary line.SELECTED DRAWING: Figure 1
Patent JP-2021138853-A (JP)
Title: Expanadable polyurethane composition and polyurethane foam
Inventor: TAMAI YUSUKE
IPC: C08G18/40
Filed: 2020-03-05
Abstract: To provide an expandable polyurethane composition that can form a foam excellent in fire resistance, has excellent handleability due to difficulty to generate precipitate at the time of storage, and can suppress wearing of a spraying device used at the time of use.SOLUTION: A foaming polyurethane composition comprising a polyol compound, a polyisocyanate compound, a catalyst, a foaming agent, and a liquid flame retardant, in which the foaming polyurethane composition does not substantially contain an inorganic filler; when the polyurethane foam formed from the foaming polyurethane composition is measured under the following condition with TG-DTA at 300°C, a weight loss rate is 40% or smaller. TG-DTA measurement is carried out by measuring the position of 5 mm to 10 mm from the surface of the polyurethane foam, and the sample is measured at a temperature rise rate of 10°C/min and a measured temperature range of 40 to 1000°C for the measurement sample.SELECTED DRAWING: None
Patent JP-2021141476-A (JP)
Title: Piezoelectric device
Inventor: OTA YOSHIO
IPC: H04R17/00
Filed: 2020-03-06
Abstract: To provide a piezoelectric device which makes an impact from the outside less likely to be transmitted to a piezoelectric element and makes transmission/reception characteristics less likely to be deteriorated.SOLUTION: A piezoelectric device 1 includes a case 10, a diaphragm 17, and a piezoelectric element 20. The case 10 is formed of a resin and defines a storage space. The piezoelectric element 20 is disposed in the storage space. The diaphragm 17 is disposed between the case 10 and the piezoelectric element 20. The piezoelectric element 20 is joined to the diaphragm 17.SELECTED DRAWING: Figure 4
Patent JP-2021054648-A (JP)
Title: Print paper separation device and printer
Inventor: LIU ZHIPING
IPC: B65H1/06
Filed: 2020-03-06
Abstract: To solve such a problem as multiple sheets of print paper are simultaneously transported when transporting print paper.SOLUTION: The print paper separation device has a base equipped with a print paper storage chamber and a paper stopper, further including: a molding structure that causes the middle part of the print paper to swell and both ends thereof to come closer to the bottom part of the print paper storage chamber. The paper stopper is provided with a middle recess part that corresponds to the molding structure and a paper abutting part provided on both side thereof where only one sheet of print paper can pass. The transport of print paper is smooth, thereby reducing such problems as printing is disabled due to multiple sheets of print paper being transported and a printer failure occurs.SELECTED DRAWING: Figure 1
Patent JP-2021139821-A (JP)
Title: Ultrasonic flaw detection method for round bar material
Inventor: MORI DAISUKE
IPC: G01N29/11
Filed: 2020-03-08
Abstract: To provide an ultrasonic flaw detection method for a round bar material enabling a surface flaw and a surface layer flaw to be promptly and surely discriminated.SOLUTION: A lateral wave ultrasonic beam Ub is scanned in a direction along a peripheral surface of a round bar material M while transmitting the lateral wave ultrasonic beam Ub to a round bar material M.A reflected ultrasonic wave reflected and returned by a surface layer flaw M1 of the round bar material M or a surface layer flaw M2 generated within the round bar material M immediately below a surface is received and denoted as a flaw echo signal. A flaw echo image is created by using, as axes of a two-dimensional image, each scanning position of the oblique angle flaw detection ultrasonic wave (Ub) and a time from transmitting the lateral wave ultrasonic beam Ub at the scanning position until obtaining the flaw echo signal. A required number of flaw echo images are given to a neural network 3 as learning data for learning, and a new flaw echo image is given to the neural network 3 which has learnt the learning data, to discriminate whether a flaw corresponding to the flaw echo image is a surface flaw M1 or a surface layer flaw M2.SELECTED DRAWING: Figure 1
Patent JP-2021142590-A (JP)
Title: Electric power tool
Inventor: KUSUMOTO TAKAHIRO
IPC: B25F5/02
Filed: 2020-03-10
Abstract: To provide an electric power tool, whose exterior can be smoothly assembled and which can be suppressed from enlarging in size.SOLUTION: An electric power tool comprises: a motor having a stator and a rotor that can rotate with respect to the stator; a gear that is driven by rotation of the rotor; a motor storage part that stores the motor; a grip part linked to a lower part of the motor storage part; a rear cover covering an opening at a rear part of the motor storage part; a gear case that stores the gear and covers an opening at a front part of the motor storage part; a first screw fixing the rear cover to the motor storage part; and a second screw fixing the motor storage part to the gear case. In a surface orthogonal to a rotating shaft, the first screw and the second screw are arranged at different positions.SELECTED DRAWING: Figure 2
Patent JP-2021010717-A (JP)
Title: Information processing program, information processing method, and information processing system
Inventor: SUGIHARA HIDENORI
IPC: A63F13/69
Filed: 2020-03-11
Abstract: To further enhance amusement on a lottery when executing a plurality of kinds of lotteries.SOLUTION: An information processing program causes a computer to achieve: a main lottery function for imparting to a player a first game element selected by a lottery from lottery object first game elements to a player on the basis of an operation by the player; an exchange function for consuming a predetermined second game element, and imparting a first game element corresponding to the predetermined second game element to the player; an enhancement function for consuming the predetermined second game element and enhancing a first game element corresponding to the predetermined second game element; and an additional lottery function for imparting a second game element selected by a lottery from lottery object second game elements in which the predetermined second game element corresponding to the lottery object first game elements is included to the player on the basis of the execution of processing on the main lottery function.SELECTED DRAWING: Figure 3
Patent JP-2021142613-A (JP)
Title: Tool management system, tool size measurement device, and terminal
Inventor: MISUMI SUSUMU
IPC: B23Q15/00
Filed: 2020-03-12
Abstract: To collectively manage a tool holder with a tool with a simple configuration.SOLUTION: A tool management system includes: a plurality of tool holders (2) which has been previously attached with code information (23) for specifying tool numbers that are unique identifiers, and to which tools are attached, respectively; tool database (3) for storing tool data including correction values concerning each of the tool holders in association with the tool numbers; a tool size measurement device (5) for measuring the shapes of the tool holders with the tools to be used for each processing number on the basis of a processing number that is an identifier on a program and a corresponding list (42) with use tool information; and reading means (53) for reading the code information attached to the tool holders to be measured. The tool size measurement device (5) specifies the tool number of the tool holder (2) to be measured by the read code information, and executes link processing of linking the specified tool number with the processing number on the tool database (3).SELECTED DRAWING: Figure 1
Patent JP-2021150688-A (JP)
Title: Electronic component, multiplexer, and module
Inventor: YAMAUCHI MOTOI
IPC: H03H9/17
Filed: 2020-03-16
Abstract: To provide a highly reliable electronic component.SOLUTION: An electronic component includes: a first substrate 10 having a substantially quadrangular planar shape and having a first surface and a second surface facing the first surface; an element 22 provided on the first surface; four first terminals 18a provided adjacent to four corners 13a, 13b, 13c, and 13d on the second surface, respectively; and a second terminal 18b provided between first terminals 18a at both ends on sides 11a and 11b of two opposite sides of the second surface, and in which the area is smaller than the area of each of the first terminals 18a at both ends, and a width Y4 of each side in the extending direction is equal to or less than a width Y5 in the extending direction of each of sides of the first terminals 18a at both ends.SELECTED DRAWING: Figure 1
Patent JP-2020155127-A (JP)
Title: Real estate server and real estate search system
Inventor: KINUGASA SHIGEKI
IPC: G06Q50/16
Filed: 2020-03-17
Abstract: To allow for providing appropriate real estate property information in consideration of own funds (of a customer) and an amount available for loan.SOLUTION: A real estate server 100 is provided, comprising: determination means 175 configured to determine a purchase budget of a user for a real estate property based at least on annual income and age of the user sent from a user device; first arithmetic means 180 configured to derive construction floor area and a price of a building based on the purchase budget of the user for a real estate property and a floor plan desired by the user; and second arithmetic means 185 configured to derive constructible floor area and a land purchase price based on the construction floor area and the price of the building derived by the first arithmetic means 180 and the purchase budget for a real estate property.SELECTED DRAWING: Figure 9
Patent JP-2021158173-A (JP)
Title: Semiconductor device and method for manufacturing the same
Inventor: KOBAYASHI NAOTO
IPC: H01L29/78
Filed: 2020-03-26
Abstract: To provide a semiconductor device capable of suppressing occurrence of stress migration in a metal wiring arranged between semiconductor element formation regions.SOLUTION: A semiconductor device 100 comprises transistor formation regions 111 and 112 formed with a transistor 110 and separated from each other, and a gap region 113 sandwiched between the transistor formation regions. The semiconductor device further includes: metal wiring layers M1, M2, and M3 arranged above and connected to the transistor; inter-layer insulation films L1, L2, L3, and L4 insulating between the metal wiring layers and arranged in the transistor formation regions and the gap region; wiring plug groups 111P and 112P embedded through the inter-layer insulation films and connected to the metal wiring layers; inter-region metal wiring 114 disposed in the gap region 113; and a dummy plug group 113P embedded in the gap region among the inter-layer insulation films L1, L2, and L3 in a layer lower than the uppermost layer M3 of the metal wiring layers.SELECTED DRAWING: Figure 5
Patent JP-2021158779-A (JP)
Title: Failure determination device and failure determination method for relative position acquisition system
Inventor: SAKAKIBARA NAOYA
IPC: B60L53/12
Filed: 2020-03-26
Abstract: To provide a failure determination device and the like for a relative position acquisition system that can accurately determine failure of the relative position acquisition system.SOLUTION: An ECU 10 of a failure determination device receives a wireless LAN signal from a power-transmission-side wireless communication device 33 with a vehicle-side wireless communication device 23 (STEP 3), and determines failure of a relative position acquisition system (STEP 4-6) based on whether formulas (1)-(8) are established in received strengths Lp1-Lp4 of a long wave signal at first to fourth power-transmission-side antennas 41-44 included in the wireless LAN signal.SELECTED DRAWING: Figure 8
Patent JP-2021154606-A (JP)
Title: Multilayer film and package
Inventor: NAKADA TOMOHIRO
IPC: B32B3/10
Filed: 2020-03-27
Abstract: To provide a multilayer film which suppresses variation in thicknesses of a sealant layer and reduces cut of a layer and thereby improves a yield, and can suppress variation in peeling strengths of the sealant layer, and a package having desired easy peelability to a non-woven fabric made of polyethylene.SOLUTION: A multilayer film 1 has at least a sealant layer 2 provided as a surface layer, in which the sealant layer 2 contains at least a first resin having a melting point of 70-110°C and a second resin having a melting point of 130-200°C, and a melt flow rate of the first resin is 3 g/10 min or more, and in the sealant layer 2, a ratio of a content of the first resin with respect to the total mass of the sealant layer 2 is 51-99%, and a ratio of a content of the second resin with respect to the total mass thereof is 1-49%.SELECTED DRAWING: Figure 1
Patent JP-2021033256-A (JP)
Title: Fully differential front end for sensing
Inventor: ANUP P JOSE
IPC: H01L51/50
Filed: 2020-03-27
Abstract: To provide a system and method for sensing a drive current in a pixel.SOLUTION: In some embodiments, the system includes a first pixel, a second pixel, a differential sensing circuit, a reference current source, and a control circuit. The differential sensing circuit may have a first input, a second input and an output, the first input being connected to a node at which a reference current generated by the reference current source is subtracted from a first pixel current, the first pixel current including a current generated by the first pixel. The second input may be configured to receive a second pixel current, the second pixel current including a current generated by the second pixel. The output may be configured to produce an output signal on the basis of a difference between a current received at the first input and a current received at the second input.SELECTED DRAWING: Figure 2a
Patent JP-2021155209-A (JP)
Title: Sheet feeder
Inventor: ASADA TETSUO
IPC: B65H3/52
Filed: 2020-03-30
Abstract: To provide a sheet feeder capable of stabilizing sheet separation performance regardless of the number of sheets remaining in a sheet feed tray.SOLUTION: An image recording device 1 is equipped with a paper feeding tray 3 having a sheet S loading surface 3a, an inclined member 10, and a feeding unit 20 that feeds the sheet S to the inclined member 10. An inclined surface 10a of the inclined member 10 has a first inclined surface 11a, which is inclined relative to a placing surface 3a and a second inclined surface 12a, which has a smaller inclination angle relative to the placing surface 3a than the first inclined surface 11a. The first inclined surface 11a is located at the downstream side in the feeding direction with respect to the second inclined surface 12a.SELECTED DRAWING: Figure 2
Patent JP-2021157740-A (JP)
Title: Transportation control system and transportation control method
Inventor: SHIBATA KAZUKI
IPC: G05B11/36
Filed: 2020-03-30
Abstract: To stably control movement of a transport object without the necessity of transfer of information between agents.SOLUTION: A transportation control system includes a central computer and a plurality of agents. The central computer detects a condition of a transport object, calculates an error between the detected condition of the transport object and a target value, and transmits a center of gravity of the transport object and the calculated error to each of the agents. On receipt of the center of gravity of the transport object and the error, each of the agents uses the center of gravity of the transport object to detect the condition of the agent. The agent controls the condition of the agent on the basis of an assessment function that employs the detected condition of the agent and the error and that persuades the agent to follow the target value.SELECTED DRAWING: Figure 1